package idv.loveloser.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * A data access object (DAO) providing persistence and search support for
 * MdlQuestionTruefalse entities. Transaction control of the save(), update()
 * and delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see idv.loveloser.dao.MdlQuestionTruefalse
 * @author MyEclipse Persistence Tools
 */

public class MdlQuestionTruefalseDAO extends BaseHibernateDAO {
	private static final Logger log = LoggerFactory
			.getLogger(MdlQuestionTruefalseDAO.class);
	// property constants
	public static final String QUESTION = "question";
	public static final String TRUEANSWER = "trueanswer";
	public static final String FALSEANSWER = "falseanswer";

	public void save(MdlQuestionTruefalse transientInstance) {
		log.debug("saving MdlQuestionTruefalse instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(MdlQuestionTruefalse persistentInstance) {
		log.debug("deleting MdlQuestionTruefalse instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public MdlQuestionTruefalse findById(java.lang.Long id) {
		log.debug("getting MdlQuestionTruefalse instance with id: " + id);
		try {
			MdlQuestionTruefalse instance = (MdlQuestionTruefalse) getSession()
					.get("idv.loveloser.dao.MdlQuestionTruefalse", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(MdlQuestionTruefalse instance) {
		log.debug("finding MdlQuestionTruefalse instance by example");
		try {
			List results = getSession()
					.createCriteria("idv.loveloser.dao.MdlQuestionTruefalse")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding MdlQuestionTruefalse instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from MdlQuestionTruefalse as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByQuestion(Object question) {
		return findByProperty(QUESTION, question);
	}

	public List findByTrueanswer(Object trueanswer) {
		return findByProperty(TRUEANSWER, trueanswer);
	}

	public List findByFalseanswer(Object falseanswer) {
		return findByProperty(FALSEANSWER, falseanswer);
	}

	public List findAll() {
		log.debug("finding all MdlQuestionTruefalse instances");
		try {
			String queryString = "from MdlQuestionTruefalse";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public MdlQuestionTruefalse merge(MdlQuestionTruefalse detachedInstance) {
		log.debug("merging MdlQuestionTruefalse instance");
		try {
			MdlQuestionTruefalse result = (MdlQuestionTruefalse) getSession()
					.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(MdlQuestionTruefalse instance) {
		log.debug("attaching dirty MdlQuestionTruefalse instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(MdlQuestionTruefalse instance) {
		log.debug("attaching clean MdlQuestionTruefalse instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}